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Eggtimer Rocketry is proud to announce the pending availability of the Eggtimer EZ-DD Rocket/Altimeter package. One of the most frequent questions that we have received over the past 11 years has been "What do I need to get started in dual-deploy?". The answer has always been an a la carte approach... an altimeter, pick a rocket kit, you'll need to get some bits for the sled, some more for the hardware, some charge wells, some wiring, some terminal blocks, parachutes, etc. etc. etc. It occurred to us that there is a need for a complete package, including the rocket, altimeter, AV bay parts, and all of the hardware and wiring necessary for a dual-deploy newbie to build and fly their first build. So, we created one!
The Eggtimer EZ-DD rocket is a 3" diameter 40" long cardboard/wood rocket, based on the venerable Balsa Machining 3" School Rocket, but with a 12" parachute payload bay and a custom dual-deploy AV bay. It has a 29mm motor mount, and flies great on G and H motors, and will also handle some I's too. It weighs about 24 oz without the motor. The apogee break is drogueless due to the light weight of the rocket, main recovery is with a 24" Top Flight parachute; we include two 10' Kevlar shock cords.
The altimeter is specially-designed for the EZ-DD rocket, and is about as simple as you can get. It's almost all through-hole construction, so you're not going to be working with those tiny fiddly little surface-mount parts. It features an "Apogee" output that fires just past apogee for your drogue output, with the "Main" output firing at 600'. The EZ-DD altimeter features an integral electronic push-button switch... you press the button to turn it on, and hold the button for 5+ seconds to turn it off. This prevents any vibrations that may "bounce" the button in flight from turning off the altimeter and preventing deployments. It features a dual-ended output design for ground safety, similar to our WiFi-enabled altimeters... there is no "common" connection between the battery and the outputs, both sides of the ematches are switched off until the outputs are triggered in flight. It's also compatible with our Eggtimer Telemetry System, so you can add voice telemetry if you want. Finally, it's designed to use a common 9V alkaline battery... we recommend the 6LR61 types, since they use welded cells and are more reliable than the pressed-cell batteries.
The EZ-DD Rocket/Altimeter package is $100. We have a roomful of parts right now, and expect to have everything ready to ship out in about a week or so.
As usual, thanks for your continued support!
Cris Erving, Eggtimer Rocketry
The Eggtimer EZ-DD rocket is a 3" diameter 40" long cardboard/wood rocket, based on the venerable Balsa Machining 3" School Rocket, but with a 12" parachute payload bay and a custom dual-deploy AV bay. It has a 29mm motor mount, and flies great on G and H motors, and will also handle some I's too. It weighs about 24 oz without the motor. The apogee break is drogueless due to the light weight of the rocket, main recovery is with a 24" Top Flight parachute; we include two 10' Kevlar shock cords.
The altimeter is specially-designed for the EZ-DD rocket, and is about as simple as you can get. It's almost all through-hole construction, so you're not going to be working with those tiny fiddly little surface-mount parts. It features an "Apogee" output that fires just past apogee for your drogue output, with the "Main" output firing at 600'. The EZ-DD altimeter features an integral electronic push-button switch... you press the button to turn it on, and hold the button for 5+ seconds to turn it off. This prevents any vibrations that may "bounce" the button in flight from turning off the altimeter and preventing deployments. It features a dual-ended output design for ground safety, similar to our WiFi-enabled altimeters... there is no "common" connection between the battery and the outputs, both sides of the ematches are switched off until the outputs are triggered in flight. It's also compatible with our Eggtimer Telemetry System, so you can add voice telemetry if you want. Finally, it's designed to use a common 9V alkaline battery... we recommend the 6LR61 types, since they use welded cells and are more reliable than the pressed-cell batteries.
The EZ-DD Rocket/Altimeter package is $100. We have a roomful of parts right now, and expect to have everything ready to ship out in about a week or so.
As usual, thanks for your continued support!
Cris Erving, Eggtimer Rocketry
